This procedure has two commonly used and interchangeable names. One name is SADI which stands for Single Anastomosis Duodeno-Ileo Bypass. The second name is SIPS which stands for Stomach Intestinal Pylorus Sparing Surgery.
Is the SADI / SIPS better than a Duodenal Switch
Although the two procedures are very similar, SADI is somewhat less invasive. This is because there is one intestinal reconnection rather than two as with a Duodenal Switch. This results in a much lower risk of internal hernia but unfortunately, because the procedure is new there is no long term data (>10 years) available at this time for effective comparison. Talk to your surgeon about the two options and he/she can guide you in making this choice.
How much weight can I expect to lose with a SADI / SIPS?
As a primary operation the average weight loss is 70-75% of excess weight.
As a “second stage” operation after a sleeve, the average weight loss is 45-50% of excess weight.